[Solved] Given this widget JSON snippet for a CloudWatch dashboard:{"type": "metric", "x": 0, "y": 0, "width": 6, "height": 6, "properties": {"metrics":... | AWS

AWS - CloudWatch

Given this widget JSON snippet for a CloudWatch dashboard:

{"type": "metric", "x": 0, "y": 0, "width": 6, "height": 6, "properties": {"metrics": [["AWS/EC2", "CPUUtilization", "InstanceId", "i-1234567890abcdef0"]], "period": 300, "stat": "Average"}}

What metric will this widget display?

ATotal network traffic of all EC2 instances

BAverage CPU utilization of the specified EC2 instance

CDisk read operations for the specified EC2 instance

DMemory usage of the specified EC2 instance

Step-by-Step Solution

Solution:

Step 1: Analyze the metric details in JSON
The metric is "CPUUtilization" for AWS/EC2 with a specific InstanceId, using average statistic.
Step 2: Match metric to options
Average CPU utilization of the specified EC2 instance matches CPU utilization average; others mention different metrics not in JSON.
Final Answer:
Average CPU utilization of the specified EC2 instance -> Option B
Quick Check:
Metric name = CPUUtilization [OK]

Quick Trick: Look for metric name and stat in properties.metrics [OK]

Common Mistakes:

MISTAKES

Confusing CPU with network or disk metrics
Ignoring the InstanceId filter
Assuming memory metric without it specified

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Given this widget JSON snippet for a CloudWatch dashboard:

Step 1: Analyze the metric details in JSON

Step 2: Match metric to options

Final Answer:

Quick Check:

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